Is the seasonal change of sexual differences in shell use by the hermit crab Pagurus minutus considered to be driven by growth or reproduction?
Is the seasonal change of sexual differences in shell use by the hermit crab Pagurus minutus considered to be driven by growth or reproduction?
复制标题
寄居蟹 Pagurus minutus 的壳利用性别差异的季节性变化是否被认为是由生长或繁殖驱动的？
DOI：
10.1017/s0025315418000905
复制
发表时间：
2019
影响因子：
1.2
通讯作者：
Koga Tsunenori
中科院分区：
文献类型：
--
作者：
Yasuda Chiaki I.;Takiya Yuki;Otoda Masaya;Nakano Reiko;Koga Tsunenori
行为上的性别差异常常受到两性之间个体兴趣差异的影响：雄性的生长和雌性的产卵。一些寄居蟹在繁殖季节的壳使用模式上表现出性别差异。然而，在非繁殖季节，当两性都专注于促进生长时，这种性别差异预计会减少。在这项研究中，我们比较了寄居蟹 Pagurus minutus 不同季节的壳使用模式，同时重点关注壳形状对生长或产蛋的影响。正如我们所预测的，P. minutus 壳利用的性别差异表现出季节性变化。在非繁殖季节，两性似乎都使用非常适合生长的贝壳。在繁殖季节，性别差异变得更加明显，尤其是在较大的独居蟹和守卫蟹中。雄性垄断了圆形贝壳，例如 Umbium moniliferum 的贝壳，而超过 80% 的雌性则依赖高螺旋型贝壳，例如 Batillaria zonalis 的贝壳。使用蝙蝠虫型贝壳的雌性在卵数方面缺乏优势，这表明雌性贝壳的使用除了最大化产卵数量之外还有其他因素可以解释。两性在繁殖季节均可换毛，体型较大有利于繁殖。鉴于蝙蝠虫型贝壳导致生长增量较低，并且雄性在同属螃蟹中的贝壳战斗中具有优势，我们的研究结果表明，两性之间对贝壳的竞争和雌性妥协在决定小蟹类贝壳使用模式的季节性变化方面具有重要意义。
Sexual differences in behaviours are often affected by the difference in individual interests between the sexes: growth in males and egg production in females. Some hermit crabs show sexual differences in shell use patterns during the reproductive season. In the non-reproductive season, however, when both sexes are focused on increasing growth, this sexual difference is expected to be reduced. In this study, we compared the pattern of shell use in the hermit crab Pagurus minutus between seasons, while focusing on the effects of shell shape on growth or egg production. As we predicted, sexual differences in shell use in P. minutus showed seasonal change. In the non-reproductive season, both sexes appeared to use shells well suited for growth. In the reproductive season, sexual differences became more evident, especially in larger solitary crabs and guarding pairs; males monopolized round-type shells such as those of Umbonium moniliferum, whereas more than 80% of females relied on high-spired Batillaria-type shells such as those of Batillaria zonalis. A lack of advantage for egg number in females using Batillaria-type shells suggests that female shell use is explained by factors other than maximizing clutch size. Both sexes can moult during the reproductive season, and larger body size is advantageous for reproduction. Given that Batillaria-type shells resulted in a lower growth increment and males have an advantage in shell fights in congeneric crabs, our findings suggest the importance of intersexual competition for shells and female compromise in determining the seasonal change of shell use patterns in P. minutus.
登录
查看更多内容
雄性体型和交配质量对寄居蟹雄性竞争的影响
影响因子：
0.6
作者：
D. Tanikawa;Chiaki I. Yasuda;Yutaro Suzuki;S. Wada
通讯作者：
S. Wada
瓦卡河口夏季三种寄居蟹的分布、性别比及体型
DOI：
10.5179/benthos.63.23
发表时间：
2008
期刊：
影响因子：
--
作者：
T. Koga;Yuri Fukuda
通讯作者：
Yuri Fukuda
雄性红沼泽小龙虾克氏原螯虾（Girard）与不同性别和繁殖状态的同种入侵者之间的住所竞争
影响因子：
1
作者：
M. Figler;G. Blank;H. V. Peeke
通讯作者：
H. V. Peeke
周边栖息地的适应：河口寄居蟹（Pagurus minutus）渗透调节特性的种内变异
DOI：
--
发表时间：
2014
期刊：
影响因子：
--
作者：
K. Yoshino;T. Koga;K. Taniguchi;R. Tasaka
通讯作者：
R. Tasaka
影响因子：
4.8
作者：
Beck, Carrie A.;Iverson, Sara J.;Blanchard, Wade
通讯作者：
Blanchard, Wade